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NCT06910813
An open-label, multi-center, phase I/II study to assess the safety, tolerability and efficacy of DFT383 in pediatric participants with nephropathic cystinosis, followed by a long-term extension phase. The purpose of this clinical study is to assess safety, tolerability, and efficacy of DFT383 in participants aged 2 to 5 years with nephropathic cystinosis. The study consists of a Core Phase and a long-term Extension Phase. DFT383 is a cellular gene therapy. This study includes an active arm (Cohort 1) of participants treated with study treatment DFT383 and a concurrent reference arm (Cohort 0). Participants in Cohort 0 will not receive study treatment and will only participate in the Core Phase of the study. The study is not randomized and Cohort 0 aims to collect prospective and concurrent data in this rare disease.
NCT03919981
Nephropathic Cystinosis (NC) is an orphan inherited autosomal recessive disease characterised as a generalized lysosomal storage disease due to a deficiency of the cystine lysosomal transport protein, cystinosin. Patients with NC usually receive cysteamine. Bone impairment was recently recognized as a late complication of NC, occurring at adolescence or early adulthood. Even though the exact underlying pathophysiology is unclear, at least six hypotheses are discussed, and mainly cysteamine toxicity and/or direct bone effect of the Cystinosin (CTNS) mutation. Because of the potential dramatic impact on quality of life of this novel complication, research should aim to better understand bone disease in NC. The primary objective of this study is to evaluate the action of cysteamine on osteoclastic differentiation and resorption activity of NC patients, depending on the underlying genotype. The Secondary objective is to describe the clinical bone status of NC patients depending on their underlying genotype.
NCT04246060
Most of the real world evidence data related to efficacy of cysteamine therapy is retrospective. This study is a ambispective study to investigate the impact of cystine depletion therapy on the quality of life of patients and their parents.
NCT01432561
In order to meet FDA standards of safety and efficacy reporting for most new drugs, food-effect bioavailability (the impact that the presence of food in the digestive tract has on the rate and extent at which a drug is absorbed into the bloodstream and delivered to the site of action) must be collected. Cystagon™ is an FDA approved drug for the treatment of the rare disease cystinosis that became available in 1994, but there is inadequate knowledge of the food-effect on this drug's bioavailability. This study aims to investigate how food affects the absorption of Cystagon™ into the bloodstream of normal healthy adults.